Recently, I have seen a lot of questions that essentially ask, "Is this proof correct?" or "Can you verify my work is correct?" like this one.
Often, especially when the asker's work is in fact correct, these questions have a one-word answer. I feel that these questions could be much improved by taking advantage of an underused feature: answering your own question.
Instead of asking the question and presenting your own work in the question, if the asker feels they may have a complete solution, they ought to post this as an answer instead of including the proof in the question (mentioning instead "I have included what I believe to be a solution, and would like to make sure it is correct"). This could be made clear in the FAQ or similar pages.
It seems that this question is related, and an answer there suggests answering your own question.